Incandescent gas-burner.



Y Patented Apr. 22', [902. F. E. CLAWSON & 0. C. BENJAMIN.

INCANDESCENT GAS BURNER.

(Application :file d Dec. 17, 1901.\

(N0 Model.)

: tioml,

No. 698,373. Patented Apr. 22, |902.

` F. E. cLAwsoN & o. c. BENJAMIN. INCANDESC--NT GAS BURNER.`

(Application ined Dec. 1'7,` 1901.,

HE wnwmgnrrzks co, Punmufuc. WASHINGTON u c UNITED STATES PATENT OFFICE.

FREDRICK E. OLAVVSON, OF NEVARK, AND ORRINC. BENJAMIN, OF ORANGE, NEW JERSEY, ASSIGNORS OF ONE-THIRD TO AUGUSTUS KALTENBACH, OF NEWARK, NEW JERSEY.

INCA'NDESCENT GAS-BURNER.

SPECIFICATION forming part of Letters '.Plateut No. 698,373, dated April 22, 1902. Application filed December 1'7, 1901. Serial No. 86,275. (No model.)

To all whom it may concern,.-

Be it known that we, FREDRICK E. CLAW- sON, residing at Newark, and ORRIN C. BEN- JAMIN, residing at Orange, in the county of Essex and State of New Jersey, citizens of the United States, have invented certain new and useful Improvements in Incandescent Gas- Burners; and we do declare the following to be a full, clear, and exact description-of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to incandescent gasburners of the cap-mantle type; and one of the principal objects of the same is to provide reliable and eicient means for regulating the flow of gas to the mixing-chamber, where the gas and air are commingled before it is fed to the burner. In devices of this kind a needle-valve has been heretofore utilized for regulating the flow of gas; but in such burners the valve has generally been operated by revolving the surrounding tube, which supports the entire burner. The mantles used in this class of burners are quite fragile and are liable to be injured during the adjustment of the valve, owing to the fact that said4 mantle and its surrounding globe are moved vin turning the needle toward and from the valve-seat. To overcome this defect and to provide simple and efficient means for regulating the iiow of gas without moving either the mantle or any part of the burner except the needle and its adj usting-nut is the. principal object of this invention.

Another object is to simplify the construction of this class of burners without detracting from their general efficiency or their ornamental appearance.

These objects are attainedby means of the construction illustrated in the accompanying drawings, in which- Figure 1 is a side view of a gas-burner made in accordance with this invention. Fig. 2 is an enlarged central vertical section of the same, certain parts being broken away.

In said drawings the numeral 1 designates adjusting-nut 6, said nut having a central screw-threaded hole which fits the threaded lower end of the Valve-needle 7. This valveneedle extends through an opening formed centrally in the connection 2, and at the lower end of this opening a recess 8 is provided for the adjusting-nut 6. The valve-seat 9 is of substantially conical form and is provided with an opening 10 at its upper end to accommodate the pointed end 11 of the needle 7. The lower end of the valve-seat 9 is interiorly threaded to fit the upper end of the connection 2 and may have a milled or roughened outer surface 12 to permit it to be attached without a wrench. Above the milled portion 12 the valve-seat is exteriorlythreaded, as at 13, to receive the threaded lower end of the Bunsentube 14, which is provided with air-inlet openings 15 to admit air into the mixing-chamber 16. Fitted upon the upperend of the tube 14 is a tubular fitting 17, which has an enlarged upper end 18, into which the basket 19 is fitted. This basket may be of the usual or any preferred construction, and at its upper end a ange 20 `is provided, which rests upon the upper edge of the ittin g 17. To hold the basket in place, `a rim 21, having an inwardly-projecting flange 22,is tted to the upper end of the enlarged portion 18 of the fitting 17. A centraltube 23, having a closed lower end, is secured `to the basket 1.9, and the upper end of this tube is slitted at 24 to provide means for removing the lava mantle-support 25 in case it should be broken or injured in any way. Secured to the tube 23 is a conical deflector 26. The chimney-support 27 may be of the ordinary construction, and the globe-supporting arms 28 may be rendered adjustable to accommodate any-size globe by means of the sliding connection illustrated in Fig. l. To give a symmetrical appearance to the burner, supports 29 may be extended from the upper end of the connection 2 to the lower portion of the chimney-support 27, and any suitable ornaments may be attached to said supports 29 to give an ornamental appearance to the burner. The mantle 30, Fig. l, is supported at its upper end upon the lava tip 25.

From the foregoing it will be obvious that the iioW of gas may be regulated by turning the adjusting-nut 6 Without moving any other portion of the burner and Without disturbing the fragile mantle.

Certain changes may be made in details Without departing from the spirit and scope of the invention. Hence it is not desired to be limited to the exact construction shown.

Ve claim- 1. In an incandescent gas-burner, a con neclion fitted to the gas-supply pipe, and provided with longitudinal outlet-openings, a valve-seat secured to the upper end of` said connection, a needle extending longitudinally through the upper portion of said connection, and means fitted within an aperture in the connection, and connected to the needle, for moving said needle toward and from the valve-seat, substantially as described.

2. In a Bunsen gas-burner, a needle-valve comprising an apertured connection, a valveseat secured to said connection, a needle eX- tending through the upper end of said connection, the lower end of said needle being threaded, and an adjusting-nut seated in an aperture in the connection and fitted to the threaded end of the needle, for operation, substantially as described.

3. In a gasburner, a connection fitted upon the gas-supply pipe and provided with longitudinal outlet-openings, a valve-seat secured to the upper end of said connection and provided with a central outlet, a needle iitted to slide centrally in the connection, and a milled adjusting-nut for moving the needle toward and from the valve-seat, substantially as described.

4. In a Bunsen gas-burner, a connection provided with longitudinal outlet-openings, a valve-seat secured to the upper end of said connection, a valve needle extending up through the connection, the lower end of said needle being threaded, an adjusting-nut fitted to the threaded end of said needle and seated in an aperture in the connection, recesses at the sides of the connection -to permit access to the nut, and a Bunsen tube above the connection, substantially as described.

In testimony whereof We affix our signa tures in presence of two Witnesses.

FREDRICK E. CLAWSON. ORRIN C. BENJAMIN. Vitnesses:

GEORGE W. CRANE, ABRAM B. CRAWFORD. 

